The DE's are interchangeable. I like Avril on the right side over Durant because of better strength and block shedding though Durant is 3 points faster. Suh at DT2 because he has better coverage skills for when you audible out. This is one strength of lions 4-6 speed. You get the speed/coverage out of DT without losing beef.You can switch the safeties too if you like. I user Delmas and like having the extra hit power at FS.